I want to take my BTC investment to another level,so which of this wallet's listed bellow we serve me for a life time,that even my wife or children can access,if it goes other wice.
Software wallet
Hardware wallet
Centralize exchange wallet
Paper wallet
The best option is a hardware wallet. But if you know or want to secure your own wallet you can use a software wallet like Electrum. Just make sure that you do not use the same device to store the wallet that you use to browse the internet. The device with the wallet on it should be air-gapped with no access to any networks.
Web wallets and Centralized exchange wallets are the worst options you could choose.